This is a Dynamite 500cc Turbo Fueler fuel bottle.  The pre-assembled Turbo Fueler Fuel Bottle begins with a high-capacity, 500cc fluid reservoir -- enough for numerous fill-ups. The reservoir is clear, so you can easily tell how much fuel you have left. The long, 5 1/2" aluminum filler tube makes reaching into "buried" fuel tanks a cinch. An airtight tube cap prevents fuel from spilling out and protects the contained fuel from moisture and other contaminants. Featuring a squeezeable bottle design, the Turbo Fueler fulfills all the requirements of a fantastic fuel bottle -- fast, easy, and convenient!